🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.5

Radius: 0.76

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.42 AU - 0.68 AU

Year: 263 Days

Day: 45.4 Hours

Environment

Temp: -114 °C

Axial Tilt: 35.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 61,116,507 km

• M1: 21,243 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590

Radius: 9.7

Gravity: 6.27 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.9 AU - 1.08 AU

Year: 636 Days

Day: 11.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 61,116,507 km

• M1: 120,875 km (0.12 R)
• M2: 437,574 km (0.085 R)
• M3: 816,206 km (0.094 R)
• M4: 1,423,274 km (0.069 R)
• M5: 1,807,292 km (0.12 R)
• M6: 2,147,178 km (0.075 R)
• M7: 2,540,321 km (0.025 R)
• M8: 3,087,401 km (0.113 R)
• M9: 4,206,543 km (0.113 R)
• M10: 5,040,401 km (0.039 R)
• M11: 5,541,255 km (0.088 R)
• M12: 6,056,021 km (0.054 R)
• M13: 6,423,284 km (0.073 R)
• M14: 7,245,174 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 542.8

Radius: 13.4

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.37 AU - 2.13 AU

Year: 1495 Days

Day: 9.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 61,116,507 km

• M1: 166,802 km (0.07 R)
• M2: 681,717 km (0.118 R)
• M3: 1,327,681 km (0.113 R)
• M4: 1,801,757 km (0.077 R)
• M5: 2,389,826 km (0.084 R)
• M6: 3,118,517 km (0.077 R)
• M7: 3,678,312 km (0.105 R)
• M8: 4,672,241 km (0.119 R)
• M9: 5,141,380 km (0.115 R)
• M10: 5,728,551 km (0.119 R)
• M11: 6,548,946 km (0.095 R)
• M12: 7,189,225 km (0.108 R)
• M13: 7,816,938 km (0.04 R)
• M14: 8,481,002 km (0.117 R)
• M15: 9,033,168 km (0.074 R)
• M16: 9,578,452 km (0.079 R)
• M17: 10,049,387 km (0.11 R)
• M18: 10,602,001 km (0.099 R)
• M19: 11,697,207 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 454.4

Radius: 10.8

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.45 AU - 2.23 AU

Year: 1612 Days

Day: 9 Hours

Environment

Temp: -191 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 61,116,507 km

• M1: 135,087 km (0.059 R)
• M2: 478,264 km (0.067 R)
• M3: 849,566 km (0.087 R)
• M4: 1,198,877 km (0.097 R)
• M5: 1,610,571 km (0.081 R)
• M6: 1,988,455 km (0.062 R)
• M7: 2,752,900 km (0.119 R)
• M8: 3,800,833 km (0.096 R)
• M9: 4,572,908 km (0.118 R)
• M10: 5,056,258 km (0.103 R)
• M11: 6,357,012 km (0.029 R)
• M12: 6,787,704 km (0.042 R)
• M13: 7,314,737 km (0.114 R)
• M14: 7,868,848 km (0.083 R)
• M15: 9,120,833 km (0.091 R)
• M16: 10,305,199 km (0.092 R)
• M17: 11,449,174 km (0.115 R)
• M18: 11,908,290 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.9

Radius: 14.8

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 2.22 AU - 3.06 AU

Year: 2770 Days

Day: 9.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 61,116,507 km

• M1: 185,501 km (0.083 R)
• M2: 654,790 km (0.109 R)
• M3: 1,180,178 km (0.045 R)
• M4: 1,678,189 km (0.085 R)
• M5: 2,254,889 km (0.037 R)
• M6: 3,187,631 km (0.118 R)
• M7: 5,668,114 km (0.099 R)
• M8: 6,251,545 km (0.094 R)
• M9: 7,659,710 km (0.119 R)
• M10: 8,183,901 km (0.105 R)
• M11: 9,304,838 km (0.066 R)
• M12: 10,866,341 km (0.085 R)
• M13: 12,261,490 km (0.079 R)
• M14: 15,117,164 km (0.025 R)
• M15: 15,796,488 km (0.089 R)
• M16: 17,584,482 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.5

Radius: 13.8

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 3.35 AU - 3.87 AU

Year: 4429 Days

Day: 8.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 61,116,507 km

• M1: 171,589 km (0.103 R)
• M2: 727,195 km (0.064 R)
• M3: 1,325,587 km (0.064 R)
• M4: 2,786,709 km (0.109 R)
• M5: 3,563,272 km (0.084 R)
• M6: 4,324,276 km (0.114 R)
• M7: 4,898,283 km (0.103 R)
• M8: 5,627,423 km (0.065 R)
• M9: 7,240,537 km (0.082 R)
• M10: 7,753,658 km (0.073 R)
• M11: 8,853,202 km (0.051 R)
• M12: 9,328,624 km (0.106 R)
• M13: 11,107,941 km (0.098 R)
• M14: 12,100,224 km (0.048 R)
• M15: 14,162,281 km (0.076 R)
• M16: 14,763,215 km (0.077 R)
• M17: 16,286,122 km (0.099 R)
• M18: 20,138,865 km (0.096 R)
• M19: 21,482,404 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 959.7

Radius: 3.5

Gravity: 78.34 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 5.95 AU - 8.21 AU

Year: 12164 Days

Day: 15.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 61,116,507 km

• M1: 44,431 km (0.082 R)
• M2: 171,589 km (0.085 R)
• M3: 510,428 km (0.026 R)
• M4: 887,863 km (0.091 R)
• M5: 2,869,287 km (0.112 R)
• M6: 3,187,482 km (0.088 R)
• M7: 3,722,294 km (0.064 R)
• M8: 6,755,541 km (0.081 R)
• M9: 7,272,850 km (0.097 R)
• M10: 10,540,666 km (0.111 R)
• M11: 10,826,548 km (0.118 R)
• M12: 16,128,595 km (0.084 R)
• M13: 18,003,805 km (0.033 R)
• M14: 20,991,573 km (0.114 R)
• M15: 23,704,381 km (0.078 R)
• M16: 24,892,188 km (0.05 R)
• M17: 33,348,956 km (0.072 R)
• M18: 34,088,119 km (0.046 R)
• M19: 46,218,262 km (0.109 R)
• M20: 46,675,882 km (0.105 R)
• M21: 48,536,880 km (0.102 R)
• M22: 48,851,783 km (0.118 R)
• M23: 50,446,646 km (0.074 R)
• M24: 51,257,018 km (0.091 R)
• M25: 52,075,916 km (0.115 R)
• M26: 58,587,164 km (0.044 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 350 - 13,557 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit